Wimbledon champion Andy Murray, right, receives his Order of the British Empire (OBE) medal from the from Britain's Prince William, during an Investiture ceremony at Buckingham Palace, London Thursday Oct. 17, 2013. This is the first occasion that Prince William has officiated at a Royal Investiture. (Photo: AP)

Wimbledon champion Andy Murray, right, receives his Order of the British Empire (OBE) medal from the from Britain's Prince William, during an Investiture ceremony at Buckingham Palace, London Thursday Oct. 17, 2013. This is the first occasion that Prince William has officiated at a Royal Investiture. (Photo: AP)

Wimbledon champion Andy Murray poses with his girlfriend Kim Sears and parents Judy and Will as he displays his Officer of the Most Excellent Order of the British Empire (OBE) medal, after receiving it from Prince William during an investiture ceremony at Buckingham Palace in London October 17, 2013. (Photo: Reuters)

Wimbledon champion Andy Murray poses with his girlfriend Kim Sears and his Officer of the Most Excellent Order of the British Empire (OBE) medal, after receiving it from Prince William during an investiture ceremony at Buckingham Palace in London October 17, 2013. (Photo: Reuters)

Wimbledon champion Andy Murray poses with his girlfriend Kim Sears as they arrive at Buckingham Palace in London October 17, 2013. Murray was presented with the Officer of the Most Excellent Order of the British Empire (OBE) medal by Prince William at an investiture service on Thursday. (Photo: Reuters)

Andy Murray and Kim Sears at Buckingham Palace

Wimbledon champion Andy Murray poses with his girlfriend Kim Sears as they arrive at Buckingham Palace in London October 17, 2013. Murray was presented with the Officer of the Most Excellent Order of the British Empire (OBE) medal by Prince William at an investiture service on Thursday. (Photo: Reuters)